The Merchant Service Center allows for merchants to control whether or not a customer receives the email notification or not.
Normally a customer is sent an email notification as to when the processed payment has occurred.
Step 1: Log into the Merchant Service Center ( https://merchantcenter.intuit.com/ ), then go to Processing Tools > Manage Recurring Payments.
Step 2: Click on Settings.
Step 3: Click on Yes or No to change the option on whether or not you would like your customers to receive email notifications when charged from a recurring payment.